三角晶系
化学
配体(生物化学)
结晶学
硼
分子
螯合作用
铜
无机化学
有机化学
晶体结构
生物化学
受体
作者
Vanga Mukundam,Álvaro Muñoz-Castro,H. V. Rasika Dias
标识
DOI:10.1002/chem.202303339
摘要
Abstract A unique four‐coordinate, classical gold(I)‐carbonyl complex with substantial backdonation from gold has been isolated by using a B‐methylated and fluorinated tris(pyridyl)borate chelator. Its lighter silver(I) and copper(I) analogs enabled a study of trends in the coinage‐metal family. The B‐arylated ligand version also afforded a gold–carbon monoxide complex that displays a notably low C−O stretch value, but with trigonal planar geometry at the gold. A computational analysis shows that the Au I −CO bonds of these tris(pyridyl)borate ligand‐supported molecules consist of electrostatic attraction, OC→Au σ‐donation, and very significant Au→CO π‐back‐bonding components. The latter is responsible for the observed C−O stretching frequencies, which are lower than in free CO.
科研通智能强力驱动
Strongly Powered by AbleSci AI